Finding the Fourth Proportional to 691,419.24, 954,221.21 and 419,556.00
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Solution
The fourth proportional to 691,419.24, 954,221.21 and 419,556.00 is: 579,025.31
Step by Step Solution
- Step 1: Write the proportion equation
691,419.24 : 954,221.21 = 419,556.00 : x - Step 2: Convert to fraction form
691,419.24/954,221.21 = 419,556.00/x - Step 3: Cross multiply
691,419.24x = 954,221.21 × 419,556.00 - Step 4: Simplify right side
691,419.24x = 400,349,237,036.65 - Step 5: Solve for x
x = 400,349,237,036.65/691,419.24 - Step 6: Final answer
x = 579,025.31
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.